Source : Webster's Revised Unabridged Dictionary (1913)

Enviable \En"vi*a*ble\, a. [From {Envy}.]
   Fitted to excite envy; capable of awakening an ardent desire
   to posses or to resemble.

         One of most enviable of human beings.    --Macaulay.
   -- {En"vi*a*ble*ness}, n. -- {En"vi*a*bly}, adv.

Source : WordNet®

enviably
     adv : in an enviable manner; "she was enviably fluent in French"